DE59304400D1 - RECYCLING PROCESS FOR POLYURETHANE HARD FOAM - Google Patents
RECYCLING PROCESS FOR POLYURETHANE HARD FOAMInfo
- Publication number
- DE59304400D1 DE59304400D1 DE59304400T DE59304400T DE59304400D1 DE 59304400 D1 DE59304400 D1 DE 59304400D1 DE 59304400 T DE59304400 T DE 59304400T DE 59304400 T DE59304400 T DE 59304400T DE 59304400 D1 DE59304400 D1 DE 59304400D1
- Authority
- DE
- Germany
- Prior art keywords
- pct
- molds
- sec
- holding time
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Revoked
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
- B29C67/207—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising impregnating expanded particles or fragments with a binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
- B29B17/0042—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/0277—Apparatus with continuous transport of the material to be cured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/34—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station
- B29C33/36—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station continuously movable in one direction, e.g. in a closed circuit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/07—Binding and molding cellular particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/911—Recycling consumer used articles or products
- Y10S264/916—From porous material containing articles, e.g. sponge, foam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/108—Conveyor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/11—Heated mold
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/246—Mold heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/247—Multipart injection molds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/812—Venting
Abstract
PCT No. PCT/DE93/00225 Sec. 371 Date Nov. 30, 1993 Sec. 102(e) Date Nov. 30, 1993 PCT Filed Mar. 12, 1993 PCT Pub. No. WO93/19917 PCT Pub. Date Oct. 14, 1993.The recycling of used polyurethane foam is made possible by a process in which the starting material is first dried to a moisture content of 2 to 4% and is then filled into a multi-part mold (16, 17, 18) that defines the molded part (32). The parts of the mold (16, 17, 18) are then, with generation of the necessary compression pressure of below 20 N/mm2, pressed together and locked. These molds (16, 17, 18) that are subject to the compression pressure are heated in a tunnel furnace (20) so that the molding material reaches a temperature of approximately 130 DEG C. After a predefined holding time, the molds (16, 17, 18) can be opened under pressure and the molded parts (32) can be removed. Molded parts (32) with a thickness of 42 mm and of corresponding size have been produced successfully with this process. Instead of the molds (16, 17, 18), it is also possible that a two-part tool is used. Also possible is the use of turntables (14, 41, 44), whereby the pressing and holding time can be shortened by adding an accelerator. The process, which comprises only one pressing step, enables an approximately continuous operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59304400T DE59304400D1 (en) | 1992-03-30 | 1993-03-12 | RECYCLING PROCESS FOR POLYURETHANE HARD FOAM |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4210323 | 1992-03-30 | ||
DE4306447A DE4306447C2 (en) | 1992-03-30 | 1993-03-02 | Recycling process for rigid polyurethane foam |
DE4306626A DE4306626C2 (en) | 1992-03-30 | 1993-03-04 | Recycling process for rigid polyurethane foam |
PCT/DE1993/000225 WO1993019917A1 (en) | 1992-03-30 | 1993-03-12 | Method of recycling rigid expanded polyurethane |
DE59304400T DE59304400D1 (en) | 1992-03-30 | 1993-03-12 | RECYCLING PROCESS FOR POLYURETHANE HARD FOAM |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59304400D1 true DE59304400D1 (en) | 1996-12-12 |
Family
ID=27203577
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4306447A Expired - Lifetime DE4306447C2 (en) | 1992-03-30 | 1993-03-02 | Recycling process for rigid polyurethane foam |
DE4306626A Expired - Lifetime DE4306626C2 (en) | 1992-03-30 | 1993-03-04 | Recycling process for rigid polyurethane foam |
DE59304400T Revoked DE59304400D1 (en) | 1992-03-30 | 1993-03-12 | RECYCLING PROCESS FOR POLYURETHANE HARD FOAM |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4306447A Expired - Lifetime DE4306447C2 (en) | 1992-03-30 | 1993-03-02 | Recycling process for rigid polyurethane foam |
DE4306626A Expired - Lifetime DE4306626C2 (en) | 1992-03-30 | 1993-03-04 | Recycling process for rigid polyurethane foam |
Country Status (8)
Country | Link |
---|---|
US (1) | US5525278A (en) |
EP (1) | EP0586644B1 (en) |
AT (1) | ATE144934T1 (en) |
AU (1) | AU3625993A (en) |
CA (1) | CA2110394C (en) |
DE (3) | DE4306447C2 (en) |
ES (1) | ES2096911T3 (en) |
WO (1) | WO1993019917A1 (en) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4415586C1 (en) * | 1994-05-03 | 1996-02-08 | Stankiewicz Gmbh | Process for producing a composite foam from foam flakes, composite foam and uses of this composite foam |
DE4438143C2 (en) * | 1994-10-25 | 1997-10-09 | Basf Ag | Method and device for producing foamed plastic parts |
DE4439328A1 (en) * | 1994-11-04 | 1996-05-09 | Bayer Ag | Insulating body |
PL181643B1 (en) * | 1994-11-04 | 2001-08-31 | Bayer Ag | Thermally insulating element |
GB2300194B (en) * | 1995-04-20 | 1998-11-18 | Chang Ching Bing | Method of recycling a discarded polyurethane foam article |
DE19610943A1 (en) * | 1996-03-20 | 1997-09-25 | Telwest Recycling Gmbh | Method and device for obtaining a starting material for the production of heat insulation bodies |
WO1998017457A1 (en) * | 1996-10-21 | 1998-04-30 | Erwin Ronald D | Molded lumber substitute and manufacturing method therefor |
DE19648235C2 (en) * | 1996-11-21 | 1999-05-06 | Puren Schaumstoff Gmbh | Truss for window frames |
JP3876491B2 (en) * | 1997-02-27 | 2007-01-31 | 三菱電機株式会社 | Vacuum insulation panel, method for manufacturing the same, and refrigerator using the same |
FR2765305B1 (en) * | 1997-05-12 | 2000-08-18 | Peter Uher | MATERIAL FOR COMPOSING MULTILAYER THERMAL INSULATORS |
US5807513A (en) * | 1997-07-08 | 1998-09-15 | Ut Automotive Dearborn, Inc. | Recycling trim components |
CN1136084C (en) * | 1997-10-20 | 2004-01-28 | 合成技术控股有限公司 | Moulded element consisting of compressed mixture, method and apparatus for manufacture thereof |
NL1007314C2 (en) * | 1997-10-20 | 1999-04-21 | Syntech Holdings Bv | Molded element, especially a floor plate, composed of binder and ground, shredded banknotes as a filler |
US6099769A (en) * | 1997-12-15 | 2000-08-08 | Husky Injection Molding Systems Ltd. | Process for molding plastic articles |
DE19859091A1 (en) * | 1998-12-21 | 2000-07-06 | Basf Ag | Method and device for producing molded parts from elastomers |
US6299811B1 (en) * | 1999-04-23 | 2001-10-09 | Lear Corporation | Method of recycling polyurethane foam components |
US6623676B1 (en) | 1999-07-14 | 2003-09-23 | Wm. T. Burnett & Co. | Process for forming a continuous web from polyurethane foam pieces |
CA2395455C (en) * | 1999-12-23 | 2008-02-05 | Mobius Technologies, Inc | Polymeric foam powder processing techniques, foam powder products, and foams produced containing those foam powders |
US6481019B2 (en) | 2000-01-18 | 2002-11-19 | Stryker Instruments | Air filtration system including a helmet assembly |
IT1320719B1 (en) | 2000-10-20 | 2003-12-10 | Dayco Europe Srl | OVEN FOR THE CONTINUOUS VULCANIZATION OF A SUCCESSION OF PREFORMED ELASTOMERIC ARTICLES, IN PARTICULAR TUBES. |
DE10101112B4 (en) * | 2001-01-10 | 2008-12-18 | Michael Rosner | Process for producing recyclable multilayer sheets |
MY131962A (en) * | 2001-01-24 | 2007-09-28 | Nichia Corp | Light emitting diode, optical semiconductor device, epoxy resin composition suited for optical semiconductor device, and method for manufacturing the same |
DE10228473A1 (en) * | 2002-06-26 | 2004-02-05 | Bayer Ag | Molded polyurethane parts, a process for their production and their use |
US6990691B2 (en) * | 2003-07-18 | 2006-01-31 | Depuy Products, Inc. | Head gear apparatus |
US8501828B2 (en) * | 2004-08-11 | 2013-08-06 | Huntsman Petrochemical Llc | Cure rebond binder |
US20060141239A1 (en) * | 2004-12-28 | 2006-06-29 | Gilder Stephen D | Method for making a bonded foam product suitable for use as an underlayment for floor coverings |
AU2006226849B2 (en) | 2005-03-24 | 2012-08-23 | Stryker Corporation | Personal protection system for fitting over a head and a neck |
US20070009743A1 (en) * | 2005-07-06 | 2007-01-11 | Reinhard Kessing | Three layer composite panel from recycled polyurethanes |
US7767122B2 (en) * | 2006-04-26 | 2010-08-03 | Fred Svirklys | Process and apparatus for continuous production of foam sheets |
FR2903337B1 (en) * | 2006-07-10 | 2010-10-22 | Cera | METHOD OF MAKING A COMPONENT BASED ON AGGLOMERATED SOFT FOAM FLAKES USING A RESIN AND A CATALYST |
DE102006033818A1 (en) * | 2006-07-19 | 2008-01-24 | R & T Pur-Verbundsysteme Ohg | Producing building panels using recycled polyester and polyurethane plastic composites from construction- or automobile waste, shreds, screens, adds binder and water then compresses in mold |
US8234722B2 (en) * | 2007-12-14 | 2012-08-07 | Stryker Corporation | Personal protection system with head unit having easy access controls and protective covering having glare avoiding face shield |
CZ2009620A3 (en) | 2009-09-22 | 2011-04-06 | Ústav makromolekulární chemie AV CR, v.v.i. | Raw material for producing polyurethanes and process for preparing thereof from waste polyurethane |
WO2014124815A1 (en) * | 2013-02-18 | 2014-08-21 | Sidel Participations | Machine and method for forming containers from preforms carried by successive moulds |
WO2014164676A1 (en) | 2013-03-11 | 2014-10-09 | Sonoco Development, Inc. | Method for molding recycled eps using powder adhesive and steam |
EP3174679B1 (en) * | 2014-08-01 | 2018-09-26 | Euronewpack S.r.l. | Method for making a product by recycling polyethylene foam and system for making said product |
CA2941188C (en) * | 2015-09-08 | 2020-02-11 | Silia Abou Arbid | Material and method for an artificial rock |
US10787303B2 (en) | 2016-05-29 | 2020-09-29 | Cellulose Material Solutions, LLC | Packaging insulation products and methods of making and using same |
US11078007B2 (en) | 2016-06-27 | 2021-08-03 | Cellulose Material Solutions, LLC | Thermoplastic packaging insulation products and methods of making and using same |
EP3395528A1 (en) * | 2017-04-24 | 2018-10-31 | Wolfgang Kugi | Material obtainable by compressing |
MX2020001587A (en) * | 2017-08-07 | 2020-07-13 | Basf Se | Isocyanate-functional polymer components and polyurethane articles formed from recycled polyurethane articles and associated methods for forming same. |
WO2019210098A1 (en) * | 2018-04-25 | 2019-10-31 | Northwestern University | Urethane exchange catalysts and methods for reprocessing cross-linked polyurethanes |
EP3808532A1 (en) | 2019-10-15 | 2021-04-21 | LANXESS Corporation | Recycling of cast polyurethane |
CO2020002962A1 (en) * | 2020-03-12 | 2020-06-19 | Avila Florez Neylla Marcela | Process and compacted product obtained from material |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1696900A (en) * | 1929-01-01 | baily | ||
DE114927C (en) * | ||||
DE144885C (en) * | ||||
US3354578A (en) * | 1964-07-24 | 1967-11-28 | Mattel Inc | Figure toy having compressed elastomeric stuffing and bonded cover |
GB1134751A (en) * | 1965-01-22 | 1968-11-27 | Gen Foam Products | Improvements relating to foamed materials |
US3401128A (en) * | 1965-02-08 | 1968-09-10 | Hoover Ball & Bearing Co | Polyurethane foam product and method of making same |
FR2029622A1 (en) * | 1969-01-29 | 1970-10-23 | Dunlop Co Ltd | Polymeric cellular composite foam insulator - or packaging |
DD114927A2 (en) * | 1974-04-15 | 1975-09-05 | ||
DE2439672A1 (en) * | 1974-08-19 | 1976-03-04 | Holzapfel & Co Kg Geb | Flexible flooring sheets - made from waste thermoplastics containing fibres |
DD144885A1 (en) * | 1979-07-16 | 1980-11-12 | Heinrich Prokoph | METHOD FOR PRODUCING SHAPED PARTS FROM POLYURETHANE DEVICES |
US4243617A (en) * | 1979-11-16 | 1981-01-06 | Mobay Chemical Corporation | Flexible foam rebonding process and apparatus |
JPS5723636A (en) * | 1980-06-26 | 1982-02-06 | Inoue Mtp Co Ltd | Preparation of heat insulating material with waste material of rigid polyurethane roam |
JPS5734926A (en) * | 1980-08-11 | 1982-02-25 | Inoue Mtp Co Ltd | Manufacture of heat insulating material utilizing waste material of hard polyurethane foam |
JPS5756218A (en) * | 1980-09-18 | 1982-04-03 | Toyota Motor Corp | Manufacture of polyurethane resin molding |
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US4591469A (en) * | 1985-01-30 | 1986-05-27 | Wm. T. Burnett & Co., Inc. | Process for making foam-in-form polyurethane foam buns and apparatus therefor |
US4666646A (en) * | 1985-07-24 | 1987-05-19 | Chang Kun H | Method of producing high-density PU foam material |
DE3530754A1 (en) * | 1985-08-28 | 1987-03-05 | Reichhart Berta | Rigid polyurethane foams, process for their production, and device for carrying out this process |
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DE3844664C2 (en) * | 1987-10-17 | 1991-04-25 | Hofmann, Simone, 7030 Boeblingen, De | Articles, esp. panels, prepd. from hard polyurethane foam |
FR2622833B1 (en) * | 1987-11-06 | 1990-04-27 | Omnium Traitement Valorisa | PROCESS AND INSTALLATION FOR THE MANUFACTURE OF MOLDED OR EXTRUDED OBJECTS FROM WASTE CONTAINING PLASTIC MATERIALS |
DE4020602C1 (en) * | 1990-06-28 | 1992-03-19 | Stankiewicz Gmbh, 3101 Adelheisdorf, De | |
US5075057A (en) * | 1991-01-08 | 1991-12-24 | Hoedl Herbert K | Manufacture of molded composite products from scrap plastics |
US5173307A (en) * | 1991-01-09 | 1992-12-22 | Herman Miller, Inc. | Foam-rebonding mold |
ES2087444T3 (en) * | 1992-02-14 | 1996-07-16 | Chang Kun Huang | PROCEDURE TO MANUFACTURE CELLULAR MATERIAL. |
-
1993
- 1993-03-02 DE DE4306447A patent/DE4306447C2/en not_active Expired - Lifetime
- 1993-03-04 DE DE4306626A patent/DE4306626C2/en not_active Expired - Lifetime
- 1993-03-12 AT AT93905181T patent/ATE144934T1/en not_active IP Right Cessation
- 1993-03-12 DE DE59304400T patent/DE59304400D1/en not_active Revoked
- 1993-03-12 CA CA 2110394 patent/CA2110394C/en not_active Expired - Fee Related
- 1993-03-12 AU AU36259/93A patent/AU3625993A/en not_active Abandoned
- 1993-03-12 EP EP19930905181 patent/EP0586644B1/en not_active Revoked
- 1993-03-12 ES ES93905181T patent/ES2096911T3/en not_active Expired - Lifetime
- 1993-03-12 US US08/157,088 patent/US5525278A/en not_active Expired - Fee Related
- 1993-03-12 WO PCT/DE1993/000225 patent/WO1993019917A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0586644B1 (en) | 1996-11-06 |
DE4306447A1 (en) | 1993-10-07 |
ATE144934T1 (en) | 1996-11-15 |
AU3625993A (en) | 1993-11-08 |
DE4306626A1 (en) | 1994-09-08 |
ES2096911T3 (en) | 1997-03-16 |
EP0586644A1 (en) | 1994-03-16 |
US5525278A (en) | 1996-06-11 |
CA2110394A1 (en) | 1993-10-14 |
DE4306447C2 (en) | 1996-11-28 |
WO1993019917A1 (en) | 1993-10-14 |
DE4306626C2 (en) | 1997-07-03 |
CA2110394C (en) | 1997-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8331 | Complete revocation |